Omaha rules inquiry

Here is the scenario...two players in a hand, player one has three of a kind and player two declares two pair. AFTER the entire deck has been mucked to start the next hand, another player (husband to player two) states that she mis-called her hand and she really had a straight. Nobody can recall what cards were on the board, and player one asks that he be awarded the pot on the basis that the board and player two's cards have been mucked in with the rest of the deck there is no definitive way to prove that player two had a straight, and that three of a kind is the winning hand. After some serious deliberation (players in question were chip leaders at the time, and player one was all in) player one offers a split of the pot with player two and the game continues. As I am the host of this game (not to mention being player one) I need to know if I was correct in my position that the other players cards were mucked and dead.

If the mistake wasn't discovered/declared until the hands were irretrievable, the pot stays as awarded. It really doesn't matter what the person said her hand was in the 1st place though. Her hand should have been tabled and her hand determined at that point. After the fact though, it would have to be a no go for me. Keep your chips.

Wow, can I come over to your home game and muck Royal Flushes all night?

I'm sure it probably was an honest mistake, but you as WV said, you have to table the cards. To give you a somewhat similar occurrence that happened to me in Atlantic City...I was playing Limit Omaha H/L and hit a straight on the river but it also produced 3 clubs. Player A announced a flush, I did not table my cards and mucked as he was showing his cards. It was then announced by the dealer that he did not have a flush but only a set. But I had already mucked my cards and had not tabled them. So I lost the pot. And I didn't even dispute it, because it was my fault for not tabling my cards and also for not ensuring that he had what he had announced. Lesson learned.

Once cards hit the muck, they're dead...end of story.

Typically cards in muck = dead.

Though we're talking about a home game here so there really is no definitive rule. Fairness, congeniality and benefit of the doubt all have their roles, and in your position I'd probably have done the same.